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Thread: Grey/Gray Tanks

  1. #1
    Seasoned Camper
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    Grey/Gray Tanks

    Could someone from GDRV give a rundown on the Grey tanks?

    Quantity? Capacity? Number of dump valves? Are they connected? Are they separate? Certain models have one,two,or three tanks? Why do we have one dump valve in the front of the coach, and one under the chassis in the rear? Those of us with rear kitchen setups, is the sink connected to a tank? Does this change per model year?

    There are at lest 2 threads in various places on this forum, and all seem to pertain to the same, or some of the questions from above.

    Thank You

  2. #2
    Fireside Member
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    Our 323bhs rear kitchen sink has a dedicated dump valve in the rear. The sink does not drain into a tank. So I plan on running it into a hose connection to a t into sewer on full connection site
    Andy, Amy & Paige Zahn
    2011 duramax 2500 denali hd
    2015 Reflection 323bhs

  3. #3
    Manufacturer
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    Quote Originally Posted by TENN22 View Post
    Could someone from GDRV give a rundown on the Grey tanks?

    Quantity? Capacity? Number of dump valves? Are they connected? Are they separate? Certain models have one,two,or three tanks? Why do we have one dump valve in the front of the coach, and one under the chassis in the rear? Those of us with rear kitchen setups, is the sink connected to a tank? Does this change per model year?

    There are at lest 2 threads in various places on this forum, and all seem to pertain to the same, or some of the questions from above.

    Thank You
    Hi Brady & Steph,

    Rear termination is for the outside kitchen.

    Best regards,
    ~ Janice
    Mailing & shipping address: Grand Design RV, Attn: Customer Support, 13868 CR 4, Bristol IN 46507
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  4. #4
    Seasoned Camper
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    Janice,
    Is this a "NO" to the sink being connected to a tank?
    So why so secret with the plumbing layout? What about the other 7 questions in the post?

  5. #5
    Manufacturer
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    Quote Originally Posted by TENN22 View Post
    Janice,
    Is this a "NO" to the sink being connected to a tank?
    So why so secret with the plumbing layout? What about the other 7 questions in the post?
    Hi Brady & Steph (@TENN22),

    There is no secrecy involved. If you use the "search" feature we have answered this question before... For example, here is a post from just last week: http://www.mygrandrv.com/for...ing-Schematics. Hope this helps.

    Best regards,
    ~ Janice
    Last edited by GDRV Service; 03-19-2015 at 07:37 AM.
    Mailing & shipping address: Grand Design RV, Attn: Customer Support, 13868 CR 4, Bristol IN 46507
    Hours: Monday - Friday (8:00 am - 5:00 pm EST, closed holidays)

    - Phones: Grand Design RV Corporate at (574) 825-8000 or Customer Support (direct) at (574) 825-9679
    - Fax: (574) 825-9249
    - Email: [email protected]
    - Website: www.granddesignrv.com

    - Facebook: https://www.facebook.com/GrandDesignRv
    - Twitter: https://twitter.com/granddesignrv
    - Google+: https://plus.google.com/113479014558069639097
    - LinkedIn: https://www.linkedin.com/company/grand-design-rv-llc
    - Vimeo: https://vimeo.com/granddesignrv
    - YouTube: https://www.youtube.com/channel/UCHa...PuUd3J3NHNyXVQ

    For EMERGENCY or immediate assistance contact your RV dealer or GDRV Customer Support directly at (574) 825-9679 with your 17-digit RV VIN, name, and phone number.

  6. #6
    wvsecretary
    Guest
    I still don't understand. We have 302Re with two grey tank pulls but another pull under the rear of chassis. What's it for?

  7. #7
    Rolling Along
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    You might be looking at the fresh water dump valve. Try it and see what happens.

    Gord and Janet Fuchs
    Presently at Sequoia RV resort.
    California

  8. #8
    Seasoned Camper CManley's Avatar
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    Be careful pulling the fresh water dump valve if the tank has water in it, you could get wet.
    The mountains are calling and I must go" John Muir

    Chuck
    2015 Reflection 303 RLS
    2005 Chevy Silverado 2500 HD Duramax
    Elk Grove, Ca


    http://i50.photobucket.com/albums/f3...psotab2qdx.jpg

  9. #9
    wvsecretary
    Guest
    thank you that's what it was went to the manual and there it was thanks again

  10. #10
    wvsecretary
    Guest
    that would definitely happened Thanks Just bought it and haven't taken it out yet. That helps

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